Emergence of pion and proton parton distributions

3 May 2022, 18:30
20m
Parallel talk WG1: Structure Functions and Parton Densities WG1: Structure Functions and Parton Densities

Speakers

José Rodríguez-Quintero Khépani Raya Montaño

Description

We will report on recent works featuring the parton distribution functions (DFs) of pion-like systems at experimental scales, following an approach based on the assumption that there is an effective charge which defines an evolution scheme for DFs that is all-orders exact. Within this framework, strict lower and upper bounds on all Mellin moments of the valence-quark DFs are derived. Furthermore, valence, glue and all flavor sea DFs can be derived from contemporary results from numerical simulations of lattice-regularised QCD. The results from the exploited simulations are seen to obey the derived bounds and become plainly consistent with those obtained from Constinuum Schwinger methods, behaving at large values of the light-front momentum fraction as prescribed by QCD. Finally, we will discuss the extension of the same approach to the proton system.

Submitted on behalf of a Collaboration? No

Authors

Presentation materials